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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-09 12:05:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-09 12:05:33 -0700
commita022f7d575bb68c35be0a9ea68860411dec652fe (patch)
tree1860cd383d6ee291849c652ced784dd3d9acf357 /drivers/mmc
parent3de62951a5bee5dce5f4ffab8b7323ca9d3c7e1c (diff)
parenta731763fc479a9c64456e0643d0ccf64203100c9 (diff)
Merge tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block
Pull more block updates from Jens Axboe: "A combination of changes that ended up depending on both the driver and core branch (and/or the IDE removal), and a few late arriving fixes. In detail: - Fix io ticks wrap-around issue (Chunguang) - nvme-tcp sock locking fix (Maurizio) - s390-dasd fixes (Kees, Christoph) - blk_execute_rq polling support (Keith) - blk-cgroup RCU iteration fix (Yu) - nbd backend ID addition (Prasanna) - Partition deletion fix (Yufen) - Use blk_mq_alloc_disk for mmc, mtip32xx, ubd (Christoph) - Removal of now dead block request types due to IDE removal (Christoph) - Loop probing and control device cleanups (Christoph) - Device uevent fix (Christoph) - Misc cleanups/fixes (Tetsuo, Christoph)" * tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block: (34 commits) blk-cgroup: prevent rcu_sched detected stalls warnings while iterating blkgs block: fix the problem of io_ticks becoming smaller nvme-tcp: can't set sk_user_data without write_lock loop: remove unused variable in loop_set_status() block: remove the bdgrab in blk_drop_partitions block: grab a device refcount in disk_uevent s390/dasd: Avoid field over-reading memcpy() dasd: unexport dasd_set_target_state block: check disk exist before trying to add partition ubd: remove dead code in ubd_setup_common nvme: use return value from blk_execute_rq() block: return errors from blk_execute_rq() nvme: use blk_execute_rq() for passthrough commands block: support polling through blk_execute_rq block: remove REQ_OP_SCSI_{IN,OUT} block: mark blk_mq_init_queue_data static loop: rewrite loop_exit using idr_for_each_entry loop: split loop_lookup loop: don't allow deleting an unspecified loop device loop: move loop_ctl_mutex locking into loop_add ...
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/block.c29
-rw-r--r--drivers/mmc/core/queue.c23
-rw-r--r--drivers/mmc/core/queue.h2
3 files changed, 16 insertions, 38 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 88f4c215caa6..9890a1532cb0 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -202,7 +202,7 @@ static void mmc_blk_put(struct mmc_blk_data *md)
md->usage--;
if (md->usage == 0) {
int devidx = mmc_get_devidx(md->disk);
- blk_put_queue(md->queue.queue);
+
ida_simple_remove(&mmc_blk_ida, devidx);
put_disk(md->disk);
kfree(md);
@@ -2319,39 +2319,22 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
*/
md->read_only = mmc_blk_readonly(card);
- md->disk = alloc_disk(perdev_minors);
- if (md->disk == NULL) {
- ret = -ENOMEM;
+ md->disk = mmc_init_queue(&md->queue, card);
+ if (IS_ERR(md->disk)) {
+ ret = PTR_ERR(md->disk);
goto err_kfree;
}
INIT_LIST_HEAD(&md->part);
INIT_LIST_HEAD(&md->rpmbs);
md->usage = 1;
-
- ret = mmc_init_queue(&md->queue, card);
- if (ret)
- goto err_putdisk;
-
md->queue.blkdata = md;
- /*
- * Keep an extra reference to the queue so that we can shutdown the
- * queue (i.e. call blk_cleanup_queue()) while there are still
- * references to the 'md'. The corresponding blk_put_queue() is in
- * mmc_blk_put().
- */
- if (!blk_get_queue(md->queue.queue)) {
- mmc_cleanup_queue(&md->queue);
- ret = -ENODEV;
- goto err_putdisk;
- }
-
md->disk->major = MMC_BLOCK_MAJOR;
+ md->disk->minors = perdev_minors;
md->disk->first_minor = devidx * perdev_minors;
md->disk->fops = &mmc_bdops;
md->disk->private_data = md;
- md->disk->queue = md->queue.queue;
md->parent = parent;
set_disk_ro(md->disk, md->read_only || default_ro);
md->disk->flags = GENHD_FL_EXT_DEVT;
@@ -2400,8 +2383,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
return md;
- err_putdisk:
- put_disk(md->disk);
err_kfree:
kfree(md);
out:
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index d600e0a4a460..cc3261777637 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -424,9 +424,10 @@ static inline bool mmc_merge_capable(struct mmc_host *host)
*
* Initialise a MMC card request queue.
*/
-int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card)
+struct gendisk *mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card)
{
struct mmc_host *host = card->host;
+ struct gendisk *disk;
int ret;
mq->card = card;
@@ -464,26 +465,22 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card)
ret = blk_mq_alloc_tag_set(&mq->tag_set);
if (ret)
- return ret;
+ return ERR_PTR(ret);
+
- mq->queue = blk_mq_init_queue(&mq->tag_set);
- if (IS_ERR(mq->queue)) {
- ret = PTR_ERR(mq->queue);
- goto free_tag_set;
+ disk = blk_mq_alloc_disk(&mq->tag_set, mq);
+ if (IS_ERR(disk)) {
+ blk_mq_free_tag_set(&mq->tag_set);
+ return disk;
}
+ mq->queue = disk->queue;
if (mmc_host_is_spi(host) && host->use_spi_crc)
blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, mq->queue);
-
- mq->queue->queuedata = mq;
blk_queue_rq_timeout(mq->queue, 60 * HZ);
mmc_setup_queue(mq, card);
- return 0;
-
-free_tag_set:
- blk_mq_free_tag_set(&mq->tag_set);
- return ret;
+ return disk;
}
void mmc_queue_suspend(struct mmc_queue *mq)
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 3319d8ab57d0..9ade3bcbb714 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -94,7 +94,7 @@ struct mmc_queue {
struct work_struct complete_work;
};
-extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *);
+struct gendisk *mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
extern void mmc_queue_resume(struct mmc_queue *);